In this, their first adventure, Chet and Bernie investigate the disappearance of Madison, a teenage girl who may or may not have been kidnapped, but who has definitely gotten mixed up with some very unsavory characters.

December 1927. Mystery-writer Marius Quin has one previous bestseller, endless looming mortgage payments, and no idea how to write his next book. When his childhood friend Lady Isabella Montague invites him to an intimate New Year’s Eve party hosted by a narcissistic actor, Marius seizes upon the distraction. With his perpetually glum Basset hound along for the ride, he navigates the snowy lanes to the opulent estate of Everham Hall. As the celebrations begin, fireworks light up the sky, champagne corks pop, and then the host is murdered…

Chet the dog, "the most lovable narrator in all of crime fiction" (Boston Globe), and his human partner PI Bernie Little are back again, and this time they're entangled in a web of crime unlike anything they've ever seen before. Their next-door neighbor, Mr. Parsons, thought he was doing the right thing by loaning his ne'er do well son, Billy, some money to help get himself settled. But days later, Mr. Parsons has discovered that his entire life savings is gone. Valley PD is certain this is an impersonation scam, but Bernie isn't so sure.

December 1899. After the death of her beloved grandmother, Cleopatra Fox moves into the luxury hotel owned by her estranged uncle in the hopes of putting hardship and loneliness behind her. But the poisoning of a guest on Christmas eve throws her new life, and the hotel, into chaos. Cleo quickly realizes no one can be trusted, not Scotland Yard and especially not the hotel’s charming assistant manager.

After their last deployment, when she got shot, her fiancé, Martinez, got killed, and his bomb-sniffing dog, Elvis, got depressed, soldier Mercy Carr and Elvis were both sent home, her late lover’s last words ringing in her ears: “Take care of my partner.” On the Fourth of July weekend, when all of Northshire celebrates with fun and frolic and fireworks, the dog alerts to explosives and they find a squalling baby abandoned near a shallow grave filled with what appear to be human bones.